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import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.JScrollPane;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import com.easysw.cups.*;
public class GLPsearchProgressPanel
{
private JProgressBar progressBar;
private Timer timer;
private JButton searchButton;
private JLabel progressLabel;
private GLPsearch tasks[];
private JPanel panel = null;
public GLPsearchProgressPanel()
{
//Create the demo's UI.
searchButton = new JButton("Search");
searchButton.setActionCommand("Search");
searchButton.addActionListener(new ButtonListener());
progressLabel = new JLabel("Search your local subnet for CUPS servers");
progressLabel.setBackground(GLPcolors.backgroundColor);
progressLabel.setForeground(GLPcolors.foregroundColor);
progressBar = new JProgressBar(0, 254);
progressBar.setValue(0);
progressBar.setBorderPainted(true);
progressBar.setOrientation(JProgressBar.HORIZONTAL);
progressBar.setBackground(GLPcolors.backgroundColor);
progressBar.setForeground( Color.blue );
progressBar.setStringPainted(true);
panel = new JPanel();
panel.setLayout(new BorderLayout());
panel.setBackground(GLPcolors.backgroundColor);
panel.add(progressLabel,BorderLayout.NORTH);
panel.add(progressBar, BorderLayout.CENTER);
panel.add(searchButton, BorderLayout.EAST);
//Create a timer.
timer = new Timer(300, new ActionListener()
{
public void actionPerformed(ActionEvent evt)
{
int n = 0;
for (int i=0; i < 8; i++)
{
if (tasks[i] != null)
n += tasks[i].getValue();
}
progressBar.setValue(n);
//
// See if all the threads completed yet.
//
int d = 0;
for (int j=0; j < 8; j++ )
{
if (tasks[j] != null)
{
if (tasks[j].done())
{
d++;
}
}
else d++; // Thread removed ???
}
if (d >= 8)
{
timer.stop();
progressBar.setValue(progressBar.getMinimum());
searchButton.setActionCommand("Search");
searchButton.setText("Search");
progressLabel.setText("Search local subnet for CUPS servers");
String[] servers = GLPvars.getServerList();
if ((servers != null) && (servers.length > 0))
{
GLPvars.searchTM = new GLPjobTableModel(servers.length,1);
GLPvars.searchTM.setColumnName(0,"Search Results");
for (int i=0; i < servers.length; i++)
GLPvars.searchTM.setValueAt(servers[i],i,0);
GLPvars.searchTable = new JTable(GLPvars.searchTM);
GLPvars.searchTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
ListSelectionModel rowSM = GLPvars.searchTable.getSelectionModel();
rowSM.addListSelectionListener(new ListSelectionListener()
{
public void valueChanged(ListSelectionEvent e)
{
//Ignore extra messages.
if (e.getValueIsAdjusting()) return;
ListSelectionModel lsm =
(ListSelectionModel)e.getSource();
if (lsm.isSelectionEmpty())
{
//no rows are selected
}
else
{
int selectedRow = lsm.getMinSelectionIndex();
String newServer = (String)GLPvars.searchTM.getValueAt(selectedRow,0);
GLPvars.setServerName(newServer);
GLPvars.tabs.updateServerPanel(GLPvars.cupsServerName);
}
}
});
GLPvars.tabs.updateServerPanel(GLPvars.cupsServerName);
}
// DEBUG
} // threads complete?
}
});
}
/**
* The actionPerformed method in this class
* is called when the user presses the start button.
*/
class ButtonListener implements ActionListener
{
public void actionPerformed(ActionEvent evt)
{
if (evt.getActionCommand().equals("Search"))
{
progressLabel.setText("Searching .....");
//
// Create the search threads ....
//
tasks = new GLPsearch[8];
for (int i=0; i < 8; i++)
tasks[i] = new GLPsearch(i+1);
searchButton.setActionCommand("Stop");
searchButton.setText("Stop");
for (int i=0; i < 8; i++)
{
if (tasks[i] != null)
{
tasks[i].start();
}
}
timer.start();
}
else if (evt.getActionCommand().equals("Stop"))
{
progressLabel.setText("Search local subnet for CUPS servers");
for (int i=0; i < 8; i++)
{
if (tasks[i] != null)
{
tasks[i].interrupt();
}
// tasks[i] = null;
}
searchButton.setActionCommand("Search");
searchButton.setText("Search");
} // Stop event
} // actionPerformed
} // end of class
public JPanel getPanel()
{
return(panel);
}
}
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